cbd is it the drug or - idaho supreme court...thc + cbd 30 + 60 0 2 3 0 0 karniol, european j of...
TRANSCRIPT
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CBD – Is it the
new miracle
drug or
marketing
hype?
Pat Pizzo
DBP Consultants Inc
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Disclaimer Statement
The views in this presentation are
those of the Speaker and do not
necessarily represent the views of
Thermo Fisher Scientific. This
presentation is sponsored by Thermo
Fisher Scientific.
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Who am I?
For Educational Purposes only. Not for distribution or printing
Pat Pizzo
▪ In the field for 50 years.
▪ Original training and experience was with the
FBI crime laboratory in WDC.
▪ Qualified as an expert in Forensic Toxicology
in 26 states.
▪ Guest speaker on many radio talk shows and
featured in newspapers and magazines.
▪ Authored and co-authored several articles
that have appeared in the United States
and abroad.
▪ Member of international Organization to
establish Drug testing Policies for the Oil and
Gas Industry Worldwide.
▪ Former Member of the Federal Drug Testing
Advisory Board
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What we will cover today
1. Information from government agencies on
legality of CBD
2. Info on health issues incurred with CBD use.
3. What is CBD
4. Hemp
5. How does it impact urine drug screen testing.
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Federal Agencies on CBD
FDA warns company marketing unapproved cannabidiol products with unsubstantiated claims to treat cancer, Alzheimer’s, opioid withdrawal, pain and pet anxiety (FDA; 7/23/19)
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Federal Agencies on CBD
Federal Trade Commission (FTC) sends warning letters to Companies advertising their CBD-infused products as treatment for serious diseases, including cancer, Alzheimer’s and multiple sclerosis (FTC: 9/10/19)
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FDA July 2019
The U.S. Food and Drug
Administration (FDA)
recognizes the significant
public interest in cannabis
and cannabis-derived
compounds, particularly
CBD. However, there are
many unanswered
questions about the
science, safety, and quality
of products containing
CBD.
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FDA July 2019
Only one approved
prescription drug
(Epidiolex) to treat rare,
severe forms of epilepsy.
FDA has not approved
any other CBD products,
and there is very limited
available information
about CBD, including
about its effects on the
body.
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FDA Concerns July 2019
What are the effects CBD could cause in the body,
such as toxicity to the liver, when someone ingests
CBD regularly over a long period of time.
During its review of the marketing application
for Epidiolex, the FDA identified certain safety risks,
including the potential for liver injury.
These are serious risks that can be managed when
an FDA-approved CBD drug product is taken
under medical supervision, but it is less clear how
these risks might be managed when CBD is used
far more widely, without medical supervision and
not in accordance with FDA-approved labeling.
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FDA Medical Concerns with the use of
CBD – Nov 25, 2019CBD has the potential to harm you, and harm
can happen even before you become aware
of it.
CBD can cause liver injury.
CBD can affect the metabolism of other
drugs, causing serious side effects.
Use of CBD with alcohol or other Central
Nervous System depressants increases the risk
of sedation and drowsiness, which can lead
to injuries.
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FDA Medical Concerns with the use of
CBD – Nov 25, 2019
CBD can cause side effects that you might notice. These
side effects should improve when CBD is stopped or
when the amount ingested is reduced.
Changes in alertness, most commonly experienced as
drowsiness or sleepiness.
Gastrointestinal distress, most commonly experienced
as diarrhea and/or decreased appetite.
Changes in mood, most commonly experienced as
irritability and agitation.
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FDA Concerns
July 2019Cumulative exposure to
CBD if used in multiple
products.
What if you use these
products daily for a
week or a month?
The effects of CBD on
special populations.
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FDA July 2019
The safety of CBD use
in animals (e.g.,
species, breed, or
class) including pets.
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FDA Concerns July 2019
Unapproved CBD drug products have not been subject
to FDA review as part of the drug approval process.
Are they safe and effective to treat a particular disease?
What is the proper dosage?
How do they interact with other drugs or foods?
Do they have dangerous side effects or other safety
concerns?
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FDA Concerns
July 2019 Misleading and false
claims associated with CBD products may lead consumers to put off getting important medical care.
Talk to your doctor about the best way to treat diseases or conditions with existing, approved treatment options.
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How is CBD produced Grind – Flowers are ground to allow better extraction
Extract - Extractions are a way to separate CBD when it is mixed with compounds in hemp. The mixture is brought into contact with a solvent in which the substance of interest is soluble, but the other substances present are insoluble.
Winterize -an alcohol wash of the cannabis plant. It extracts the cannabinoids and terpenes from each other, making a very pure and concentrated form of CBD. Winterizing the cannabis plant consists of soaking the CBD extract in alcohol and then freezing it.
Solvent Recovery – To separate crude cannabis and hemp oil from solvents used in the extraction process.
Decarboxylation – A process that removes the carboxyl group using heat and time. CBDA is converted to CBD
Distillation – a process used to concentrate cannabidiol from CBD oils or hemp extracts to produce a clear golden colored liquid.
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What is really
in your CBD
Pesticides
Solvents – Butane, Hexane, Pentane
Waxes
% THC
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CBD – Miracle Drug or Marketing Hype?
Source:
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What does Research
Say
72 adults presenting with primary concerns of anxiety (n = 47) or poor sleep (n = 25).
Anxiety scores decreased within the first month in 57 patients (79.2%) and remained decreased during the study duration.
Sleep scores improved within the first month in 48 patients (66.7%) but fluctuated over time.
Cannabidiol may hold benefit for anxiety-related disorders. Controlled clinical studies are needed.
Cannabidiol in Anxiety and Sleep: A Large Case SeriesScott Shannon, MD, Nicole Lewis, ND, Heather Lee, PA-C, and Shannon Hughes, PhD: Perm J. 2019; 23: 18-041. Published online 2019 Jan 7
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CBD and Psychosis
Before CBD
After CBD
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Psychological Effects- Subjects rated
the effect of the drug for anxiety
Drug Dose ml 0 1 2 3 4
Placebo 0.9 5 0 0 0 0
CBD 60 5 0 0 0 0
THC 30 0 0 1 0 4
THC + CBD 30 + 60 0 2 3 0 0
Karniol, European J of Pharmacol,
1974,p172
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Does CBD
work for
Arthritis
Arthritis Foundation has commented on this issue
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Arthritis Foundation Guidelines for CBD
10/12/19
CBD may help with arthritis-related symptoms,
such as pain, insomnia and anxiety, but there
have been no rigorous clinical studies in people
with arthritis to confirm this.
While no major safety issues have been found
with CBD when taken in moderate doses,
potential drug interactions have been identified.
CBD should never be used to replace disease-
modifying drugs that help prevent permanent
joint damage in inflammatory types of arthritis.
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Arthritis Foundation Guidelines for CBD
10/12/19
CBD use should be discussed with your doctor in
advance, with follow-up evaluations every three
months or so, as would be done for any new
treatment.
There are no established clinical guidelines to
inform usage. Experts recommend starting with
a low dose, and if relief is inadequate, increase
in small increments weekly.
Buy from a reputable company that has each
batch tested for purity, potency and safety by
an independent laboratory and provides a
certificate of analysis.
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What Drugs
Interact
with
Cannabis
Nearly 60 percent of the medications on the market are metabolized through a set of liver enzymes. CBD can interact with medications that are metabolized in the body by cytochrome p450, enzymes CYP3A4 and CYP2C19
Drugs. Com has indicated 24 major interactions and 309 moderate interactions with Cannabis
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Common Drugs that interact with Cannabis
alprazolam candesartan cyclobenzaprine furosemide
amitriptyline captopril desipramine haloperidol
amlodipine carbamazepine dexbrompheniramine hydrochlorothiazide
amobarbital carisoprodol dexchlorpheniramine hydrocodone
amoxapine carteolol dextromethorphan hydromorphone
atenolol cetirizine diazepam hydroxyzine
aripiprazole chlordiazepoxide diphenhydramine imipramine
baclofen chlorothiazide doxazosin kava
benztropine chlorpheniramine doxepin lisinopril
brompheniramine chlorpromazine duloxetine lithium
buprenorphine clonazepam escitalopram lorazepam
buspirone clorazepate etizolams loxapine
butabarbital clonidine ethanol meperidine
butalbital codeine flurazepam mephenytoin
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Common Drugs that interact with Cannabis
meprobamate pentazocine risperidone valproic acid
methocarbamol pentobarbital secobarbital venlafaxine
metolazone phenacemide sertraline zaleplon
metoprolol phenobarbital St. John’s wort ziconotide
midazolam phenytoin tapentadol ziprasidone
mirtazapine prazosin temazepam zolpidem
morphine primidone theophylline zonisamide
nabilone promazine thioridazine
nitroglycerin promethazine topiramate
nitroprusside propranolol torsemide
olanzapine protriptyline tramadol
oxazepam quazepam trazodone
oxycodone quetiapine trimipramine
oxymorphone reserpine valerian
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Reports on CBD and drug
interaction
Using sertraline (Zoloft) together
with cannabidiol may increase side effects
such as dizziness, drowsiness, confusion,
and difficulty concentrating. Some
people, especially the elderly, may also
experience impairment in thinking,
judgment, and motor coordination.
www.Drugs.com
CBD has the potential to interact with
SSRIs, and other antidepressants, resulting
in increased amounts of antidepressant in
the body and a higher risk of side effects.
www.depressionalliance.org.
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Reports on CBD and
drug interaction CBD (cannabidiol) has been shown
to cause a modest drop in blood pressure in people taking high doses. Nov 6, 2018 www.consumerlab.com.
In the case of a blood thinner like warfarin (Coumadin), “other problems” could entail a traumatic bleed or a dangerous hemorrhage. Medication should be closely monitored by a physician. www.ncbi.nlm.nih.gov/pmc/articles/PMC5789126/
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Reports on CBD and drug
interaction The same goes for benzodiazepines (or
benzos) like Xanax or Ativan. With CBD they
could increase the side effects and
potentially cause you to feel more sedated or
drowsy. In some rare cases, the drug combo
may become toxic or even interfere with your
respiratory system. Michelle Henry.
According to the District of Columbia
Department of Health, CBD can also increase
the amount of medication in your blood
including antidepressants, antihistamines,
antiretrovirals, calcium channel blockers and
beta blockers.https://medlineplus.gov/druginfo/natural/1439.html#DrugInteractions.
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Reports on CBD and drug interaction
You may have heard of the grapefruit rule,
which suggests that the citrus fruit can impair
how your body absorbs certain drugs — mainly
cholesterol medications, blood pressure drugs
and allergy pills. The same is true for CBD
https://medlineplus.gov/druginfo/natural/1439.html#DrugInteractions
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Route of
administration
IV
Sublinguial
Inhalation (Vaping)
Eating or drinking
Dermally
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VAPING a popular method of CBD use
As of 2/18/20 2807 hospitalized cases or deaths
reported to CDC from the US and its territories.
68 deaths confirmed in 29 states and WDC as of
2/28/20
https://www.cdc.gov/tobacco/basic_information/e-
cigarettes/severe-lung-disease.html
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Questions to ask Have you discussed the use of CBD with your
physician?
Does it interact with any of your medications?
Have you had your liver enzymes checked since you started using CBD?
Does the product you use have a certificate of analysis?
Has the product been checked for the presence of pesticides and solvents?
What is the percentage THC in your product?
Is the benefit from CBD or do you feel better because of the THC concentration in the product.
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Why is CBD Important to the
Criminal Justice System
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Why are we
even talking
about CBD
Dec 2018 Farm Bill
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What is the 2018 Farm
Bill It removed hemp, defined as
cannabis (Cannabis sativa L.)
and derivatives of cannabis
with extremely low
concentrations of the
psychoactive compound
delta-9-tetrahydrocannabinol
(THC) (no more than 0.3
percent THC on a dry weight
basis), from the definition of
marijuana in the Controlled
Substances Act (CSA).
Testimony of Amy Abernethy, Md, Phd., Principal Deputy Commissioner, Office of the Commissioner, Food and Drug Administration, Department of Health And Human Services before the Senate Committee on Agriculture, Nutrition, and Forestry, July 2019
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2018 Farm Bill Specifies when the product must
be tested (prior to and within 15
days of harvesting).
Who can conduct the sampling.
What part of the plant is tested (top
1/3)
Actual sampling procedures
Requirements for the testing lab
Analytical procedures (total THC)
Requirements for calculating and
reporting percentages
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So How much THC is actually
allowed under the Farm Bill
The FDA web site states the following:
Laboratories shall use appropriate,
validated methods and procedures for all
testing activities and evaluate
measurement of uncertainty.
What does this mean:
Lab calculated value = 0.29%
Lab measurement of uncertainty =0.09%
Range of amount present = 0.20% – 0.38%
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Structures of CBD
and THC
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What is CBD
Cannabidiol is a phytocannabinoid
discovered in 1940. It is one of 113
identified cannabinoids in cannabis plants
and accounts for up to 40% of the plant's
extract.
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What is CBD
CBD has very little effect on CB1 and CB2
receptors. This is probably why it does not
make people high and is not mind-
altering; in fact it may even blunt some of
THC’s psychotropic effects. NIDA July 2015
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Bioavailability
of CBD
cannabidiol (CHEBI:69478)". www.ebi.ac.uk; Mechoulam R, Parker LA, Gallily R (November 2002). "Cannabidiol: an overview of some pharmacological aspects". Journal of Clinical Pharmacology.
Oral –Approximately 6% in humans
Inhalation – 11-45% mean 31%
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Half-Life
Terminal half
life – 18-36
hours
Hawksworth G, McArdle K. Metabolism and pharmacokinetics of cannabinoids. London, UK: Pharmaceutical Press; 2004.
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How long can CBD be detected:
Plasma
Researcher Number Route Amount Time
tested
Concentration Time detected
Ohlsson 3 IV 20mg 1hr 37-61 ng/ml 72 hrs
Ohlsson 3 Smoked 19.2 mg 1hr 3.0-17.8 ng/ml
Agurell 2 oral 40 mg 1 hr 1.1-11 ng/ml
Nadulski oral 5.4 mg 1 hr 0.3-2.57 ng/ml 3-4 hrs
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Does CBD convert to THCA in
the body
The use of pure CBD oil will not result in the
detection of THCA in the urine. CBD oil is
cannabidiol and will not be detected in the
confirmation method.
In the paper “Conversion of Oral Cannabidiol
to Delta9-Tetrahydrocannabinol Seems Not to
Occur in Humans by Gerhard Nahler et. Al
(Published in Cannabis and cannabinoid
Research, Vol 2.1, 2017) the authors summarize
with the following statement: Over 40 years of
research on CBD does not suggest a
conversion of CBD to delta9-THC and/or other
cannabinoids in vivo after oral administration.
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How long can CBD be detected: Urine
5 test subjects
Dose mg Route Max CBD
ng/ml
CBD Last
Detected
Max THCA
ng/ml
THCA Last
Detected
100 CBD oral 2941 103 hrs 2.9 103 hrs
100 CBD Vaped 631.1 102 hrs 2.0 95 hrs
100 CBD/0.37%
THC
Vaped 539.1 97 hrs 29.9 95 hrs
Spindle, Cone et al JAT Nov 2019
1. Peak THCA excretion 4-6 hrs
2. Same test subject had all of the highest levels
3. Federal Cut Off on confirmation is 15 ng/ml
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Are you buying CBD or Hemp
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SAMHSA Memo July 24, 2019
Studies have shown that some CBD
products’ labeling does not
accurately reflect their content.
Cannabis based products
containing a THC level greater than
0.3% on a dry weight basis do not
fall under the Farm Bill’s definition of
hemp even if they are labeled as
such.
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SAMHSA Memo July 24, 2019
In one study, the amount of
CBD in 69% of the 84 tested
CBD products was
inconsistent with that on the
label, and some products
contained unlabeled
cannabinoids, including THC
in amounts up to 6.4 mg/mL.
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Hemp Study-1
The paper Human Cannabinoid
Pharmacokinetics in 2007. Huestis et al
Oral administration of dronabinol and hemp oil.
The study was performed on 4,381 specimens.
The study concluded the low doses (7.7 mg/dl)
cleared the urine in 2-3 days with half-life
elimination of approximately 24 hrs.
The high dose (14.8 mg/dl) test subjects cleared
the drug in a maximum of 4.9 days (118 hrs) and
had a half-life elimination rates of 44.2 -64 hours.
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Hemp Study-2
Constantino, Schwartz and Kaplan published Hemp Oil Ingestion Causes Positive Urine Test for Delta-9-tetrahydrocannabinol Carboxylic Acid (THCA) in The Journal of Analytical Toxicology in Oct 1997.
In this study 7 test subjects were given 15 mls of hemp oil and urine collected at 8, 24 and 48 hours.
The highest level detected, 78 ng/ml, was at 8 hours.
At 48 hours the highest level detected was 18 ng/ml.
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Hemp Study-3
Struempler, Nelson and Urry published A Positive
Cannabinoids Workplace Drug Test Following the
Ingestion of Commercially Available Hemp Seed Oil in
Journal of Analytical Toxicology in Aug 1997.
This was a case study on a single male that
consumed 15 mls of cold-pressed hemp seed oil
twice a day for 4 days.
A total of 19 specimens were collected and analyzed
beginning the 3 day of the study.
The highest level of THCA, 68 ng/ml, detected was
108 hours into the study or approximately 3.5 days
after the last dose.
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Hemp Study-4
Dr. Marylin Huestis former Chief of Chemistry and Drug Metabolism at NIDA's Intramural Research Program (retired 2016) published the paper Human Cannabinoid Pharmacokinetics in 2007.
Page 13 of this paper discusses excretion of THCA in urine after controlled oral administration of dronabinol and hemp oil. The study was performed on 4,381 specimens. Both low doses and high doses were used. The high doses were 7.5 and 14.8 mg/d.
The study concluded the low doses cleared the urine in 2-3 days with half-life elimination in the range of 16-8 – 31.9 with means of 24.1 and 21.1 depending on the dose amount. The high dose test subjects cleared the drug in a maximum of 4.9 days (118 hrs) and had a half-life elimination rates of 44.2 -64 hours.
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Can your screening reagent detect
CBD?
Reagent/Device CBD Detected/ Concentration
Tested in Urine
CEDIA Positive at <0.1% at 1000 ng/mlDRI Negative at 10,000 ng/mlRapid drug test cup Positive 100,000ng/mlEZ Screen Negative at 100,000 ng/mlDip Stick Fastect II Negative at 100,000 ng/mlSiemens Not listedImmunalysis Positive at <0.005% at 1,000,000 ng/ml
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Distinguishing CBD/THC from Marijuana
UseLight Cannabis sold in Europe: THC <0.2%
variable CBD concentrations
1g cigarette 0.16% THC and 5.8% CBD
Blood (B) and oral fluid (OF) specimens
Mean OF/B ratio 0.6-1.2 after 1 cigarette
Mean OF/B ratio 0.6-1.9 after 4 light Cannabis
cigarettes
Illegal marijuana OF/B ratio generally >10
THC and CBD concentrations in blood, oral fluid and urine following a single and repeated administration of "light cannabis".Pacifici R1, Pichini S1, Pellegrini M1, RotoloMC1, Giorgetti R2, Tagliabracci A2, Busardò FP2, Huestis MA3. Clin Chem Lab Med April 2019
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Questions to askWhat is the stated % THC of the
product being used?
Does the user have a certificate of analysis to prove the concentration?
Are they using more than one product?
Route of administration?
When was the last claimed use?